Defining Fitness in Natural and Domesticated Populations

被引：0

作者：

Barker, James S. F. ^{[1
]}

机构：

[1] Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia

来源：

ADAPTATION AND FITNESS IN ANIMAL POPULATIONS: EVOLUTIONARY AND BREEDING PERSPECTIVES ON GENETIC RESOURCE MANAGEMENT | 2009年

关键词：

Fitness; net fitness; adaptedness; adaptability; durability; SELECTION; MICROEVOLUTION; HERITABILITY; COVARIANCE; DIVERSITY; TRAITS;

D O I：

暂无

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The term 'fitness' has been applied differently and with different definitions throughout the history of population genetics. Five concepts and definitions are presented - distinguishing (phenotypic) fitness, (genotypic) fitness, adaptedness, adaptability and durability. While the heritabilities of fitness components are low, substantial genetic change is achievable, and breeding programs should include in the breeding objectives genotypic fitness (for known QTLs) and fitness traits such as fertility and longevity, as well as production traits.

引用

页码：3 / 14

页数：12

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